My ex's streaming makes me feel sick

We were long distance and I've now unfollowed his account, I know he's doing lives everyday interacting with fans and has a discord.

This was a difficult subject when we were togther because I asked for boundaries and then he stopped doing it all togther which I never ever wanted to happen

Its making me feel ill knowing he ended our relationship and now spending hours a day everyday on lives. It makes me feel so insignificant. Has anyone got any advice how to deal with this? He is still reaching out to me also (he wanted the break up)